# DDToolsPro vs Kyanite Pro

The clearest difference is price: Kyanite Pro at Free against DDToolsPro's $9.99. Kyanite Pro also leads on update cadence (weekly vs every 2 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Kyanite Pro is free to download; DDToolsPro costs $9.99 up front. DDToolsPro sells 2 in-app purchases, starting at $12.99 per month and Kyanite Pro sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

DDToolsPro ships an update every 2 months, Kyanite Pro weekly. The most recent releases landed on September 14, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | DDToolsPro | Kyanite Pro |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kyanite-pro/id6802395850/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Freemium |
| Size | 8 MB | 40 MB |
| Requires iOS | 18.2 | **18.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael Blake](https://appshunter.io/developer/1443250004) | [Mike Haynes](https://appshunter.io/developer/6802395852) |

## What reviewers say

### DDToolsPro

[App page](https://appshunter.io/ios/app/ddtoolspro/id6755078356)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DD Tools Pro Unlock - Monthly | $12.99 | per month |
| DD Tools Pro Unlock - Annual | $129.99 | per year |


### Kyanite Pro

[App page](https://appshunter.io/ios/app/kyanite-pro/id6802395850)

This app offers a suite of offline drilling calculators and reference tools for oil and gas professionals. It includes features for mud engineers, cementers, and directional drillers, with options to share data with crews. A free tier provides basic tools, while a subscription unlocks advanced calculators and job sheets.

**Highlights:** Offline drilling calculators, Mud, cement, and directional drilling tools, Field notes and reference charts, Crew data sharing, Kill sheet and cement job sheet, Chemical inventory management

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kyanite Pro Monthly | $3.99 | per month |
| Kyanite Pro Yearly | $19.99 | per year |


## Frequently asked questions

### Is DDToolsPro free?

DDToolsPro costs $9.99, and also offers in-app purchases.

### Is Kyanite Pro free?

Kyanite Pro is free to download, with in-app purchases available.

### Do DDToolsPro or Kyanite Pro have ads?

Neither DDToolsPro nor Kyanite Pro shows ads.

### Which is updated more often, DDToolsPro or Kyanite Pro?

DDToolsPro ships an update every 2 months, and Kyanite Pro weekly. Most recently, DDToolsPro was updated on September 14, 2026 and Kyanite Pro on September 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*